The three distinct phases that constitute the sequencing of an instruction are determining the memory address that contains the instruction, fetching the instruction from memory, and executing the instruction. The evolution of instruction sequencing is traced, with attention focused on the influence of the available technology on the minimum time required for each of these phases and the resulting...
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A six-degree-of-freedom industrial robot to which was added a number of sensors-vision, range, sound, proximity, force/torque, and touch-to enhance its inspection and manipulation capabilities is described. The work falls under the scope of partial autonomy. In teleoperation mode, the human operator prepares the robotic system to perform the desired task. Using its sensory cues, the system maps th...
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Requirements imposed on both the object data model and object management by the support of complex objects are outlined. The basic concepts of an object-oriented data model are discussed. They are objects and object identifiers, aggregation, classes and instantiation mechanisms, metaclasses, and inheritance. Object-oriented models are compared with semantic, relational, and Codasyl models. Object-...
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The role of reliability models in system design is examined. Methods for predicting system reliability are discussed, covering the choice of metric for analysis, creating the system reliability model, and refining the model. A case study is presented to illustrate reliability modeling.<>
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Three development contexts are examined to provide a framework for understanding interactive software development projects. These contexts are the competitively bid, commercial product, and in-house/custom contexts development. Factors influencing interactive systems development are examined. Specific strategies to cope with the gaps between developers and prospective users are explored at the gen...
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Aims & Scope

Computer, the flagship publication of the IEEE Computer Society, publishes peer-reviewed articles written for and by computer researchers and practitioners representing the full spectrum of computing and information technology, from hardware to software and from emerging research to new applications.